
<h1><span class="yiyi-st" id="yiyi-12">numpy.swapaxes</span></h1>
        <blockquote>
        <p>原文：<a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.swapaxes.html">https://docs.scipy.org/doc/numpy/reference/generated/numpy.swapaxes.html</a></p>
        <p>译者：<a href="https://github.com/wizardforcel">飞龙</a> <a href="http://usyiyi.cn/">UsyiyiCN</a></p>
        <p>校对：（虚位以待）</p>
        </blockquote>
    
<dl class="function">
<dt id="numpy.swapaxes"><span class="yiyi-st" id="yiyi-13"> <code class="descclassname">numpy.</code><code class="descname">swapaxes</code><span class="sig-paren">(</span><em>a</em>, <em>axis1</em>, <em>axis2</em><span class="sig-paren">)</span><a class="reference external" href="http://github.com/numpy/numpy/blob/v1.11.3/numpy/core/fromnumeric.py#L456-L503"><span class="viewcode-link">[source]</span></a></span></dt>
<dd><p><span class="yiyi-st" id="yiyi-14">交换数组的两个轴。</span></p>
<table class="docutils field-list" frame="void" rules="none">
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<tr class="field-odd field"><th class="field-name"><span class="yiyi-st" id="yiyi-15">参数：</span></th><td class="field-body"><p class="first"><span class="yiyi-st" id="yiyi-16"><strong>a</strong>：array_like</span></p>
<blockquote>
<div><p><span class="yiyi-st" id="yiyi-17">输入数组。</span></p>
</div></blockquote>
<p><span class="yiyi-st" id="yiyi-18"><strong>axis1</strong>：int</span></p>
<blockquote>
<div><p><span class="yiyi-st" id="yiyi-19">第一轴。</span></p>
</div></blockquote>
<p><span class="yiyi-st" id="yiyi-20"><strong>axis2</strong>：int</span></p>
<blockquote>
<div><p><span class="yiyi-st" id="yiyi-21">第二轴。</span></p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name"><span class="yiyi-st" id="yiyi-22">返回：</span></th><td class="field-body"><p class="first"><span class="yiyi-st" id="yiyi-23"><strong>a_swapped</strong>：ndarray</span></p>
<blockquote class="last">
<div><p><span class="yiyi-st" id="yiyi-24">对于Numpy&gt; = 1.10，如果<em class="xref py py-obj">a</em>是ndarray，则返回<em class="xref py py-obj">a</em>的视图；否则创建一个新的数组。</span><span class="yiyi-st" id="yiyi-25">对于早期的Numpy版本，只有当轴的顺序改变时，才返回<em class="xref py py-obj">a</em>的视图，否则返回输入数组。</span></p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric"><span class="yiyi-st" id="yiyi-26">例子</span></p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([[</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">]])</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">swapaxes</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">)</span>
<span class="go">array([[1],</span>
<span class="go">       [2],</span>
<span class="go">       [3]])</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([[[</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">],[</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">]],[[</span><span class="mi">4</span><span class="p">,</span><span class="mi">5</span><span class="p">],[</span><span class="mi">6</span><span class="p">,</span><span class="mi">7</span><span class="p">]]])</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">array([[[0, 1],</span>
<span class="go">        [2, 3]],</span>
<span class="go">       [[4, 5],</span>
<span class="go">        [6, 7]]])</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">swapaxes</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">2</span><span class="p">)</span>
<span class="go">array([[[0, 4],</span>
<span class="go">        [2, 6]],</span>
<span class="go">       [[1, 5],</span>
<span class="go">        [3, 7]]])</span>
</pre></div>
</div>
</dd></dl>
